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Preface
Flex+ Series adopt the advanced manufacturing technology and takes the environmental-
friendly R410A as refrigerant, which is a green product in the 21st century. Please carefully read
the manual before installation and operation.
1) Flex+ Series systems conform to design standard ARI 210240-2008.
2) To ensure safety when operating this system, please strictly follow the instructions in this
manual.
3) Make sure that the manual is kept by the operators or serviceman.
4) The refrigerant pipes and accessories must be designed exclusively for R410A.
5) The total capacity of the indoor units which runs at the same time cannot exceed the capacity of
the outdoor units; otherwise, the cooling (heating) effect of each indoor unit would be lower
than the nominal capacity.
6) In case of malfunction, please examine the following items and contact our appointed service
centers as soon as possible.
Nameplate (model, cooling capacity, product code, ex-factory date).
Malfunction status (detail description of conditions before and after malfunction occurs).
7) It is a normal phenomenon that the fan of indoor unit will still run for 20-70 seconds after the
indoor unit receives the “stop” signal so as to make full use of the waste heat.
8) When the work mode of the indoors is conflict with the modes of outdoor units, it will be
indicated on the display of the wired controller in five seconds and then the indoor unit will
stop. In this case, please harmonize their work modes: the cooling mode is compatible with the
dry mode.
9) If the supply power fails when the unit is running, then the indoor unit will send the “start”
signal to the outdoor unit three minutes later after the power recovery.
10) The power cable and transmission line must not be twisted together, but instead of separated
with an interval of at least 2cm; otherwise it may be result in communication problem.
11) This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety. Children should be supervised to ensure that they do not play with the appliance.
12) All graphics and information in this manual are only for reference. Manufacturer reserves the
right for changes in terms of sales or production at any time and without prior notice.
This product must not be disposed together with the domestic waste. This product has
to be disposed at an authorized place for recycling of electrical and electronic appliances.
Thank you for purchasing Impecca air conditioners. Before using, please read
this manual carefully and keep it properly for further reference.
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